Picker-stick check for looms.



W. S. FINCH.

PlCKljIR s lcl( CHECK FOR LOOMSL- ARPLICATWWHLED APR. 30'.' 1917.

Patented Feb. 5, 1918.

2 SHEETS-SHEET l.

W. S. FINCI'I. PICKER STICK CHECK FOR LOOMS.

APPLICATION FILED APR. 30| 19H- Panm Feb. 5,1918.

2 SHEETS-SHEET 2 WALTER SMPSON FINCELF GREENVILLE, SOUTH CAROLINA.

PICKER-STICK CHECK FOR LOOMS.

Specification of Letters Patent;

Patentedlteb. 5, 19in.

Application filed April. 30, 1917. Serial No. 165,539.

i Greenville, in the county of Greenville, State ofSouth Carolina, haveinvented a Vnew and usefulPicker-Stick Check for Looms; and l do hereby`declare. the following to be a full, clear, and exact description of theinvention, such `as will enable others skilled in the art to which itappertains to make and use the same.

ri`his invention. relates to an Vimproved picker-stick check for looms,and an object of the same is the pro-duction of a device ot this kind,whereby the picker stick, when.

subjected to the impact of the shuttle, in its outward` moven'ient ischecked.

A further object of the invention is to provide a simple, etilcient andvery durable device of this kind, which will outlast the old style Otleather check strap, such is used on Draper looms.

A further object is to provide a device ot this kind which will avoidsuccessive repairs, as well as saving time that is wasted in makingrepairs.

The invention comprises further features and combination of partshereinafter set forth, shown in the drawings and claimed.

ln practical elds the details of construe tion may require alterationsfallingv within the scope of what is claimed.

ln the drawings Figure 1 isa front elevation of a portion of apickingmechanism `at one side of a loom, showing the improved picker-stickcheck as applied thereto. v

Fig. 2 is a view' in side elevation disclosing the opposite side to thatshown .in Fig. 1.

Fig. 3 is a sectionalview on line 3-3 of Fig. 1.

Fig. l is an enlarged detail perspective view of the picker-stick checkmechanism detached.

Fig. 5 is a sectional view on line 5-5 ot Fig. 4l.

Fig. 6 is a sectional view on line 6G oi Fig. t

Referring more especially to the drawings, 1 designates a portion of oneside or' a loom, and 9. the lay rocker-shaft having fast thereon thepiclrer-stick stand 3, and 4L denotes the picker-stick. Projecting laterally from the picker-stick stand 3 and downwardly is an arm 5, andarranged in an opening 6 of said arm is a lateral stud pin 7 lVhere thisstud pin 7 engages the arm 5, it is constructed rectangular, therebypreventing the stud pin from turning. @ne end of the stud pin beyond therectangular part 7 is provided with a cylindrical en tension `S havingthreads. This extension. enters an opening of the lip-standingarm 10,and by means of the nut 11 which is threaded on the extension 3, therip-stand- .ing arm 10 is held fixedly in position. `Mounted upon thepin 7 is a tubular sleeve 12. The other end oi3 the pin 7 enters auopening lll of the other end oi the sleeve. This opening 14- oi thesleeve is formed in the reduced end 13 of said sleeve. The roduced endot the sleeve has mounted thereon a drum 16, there being a nut 15 on theouter end of said pin 7 and adapted to jam against the reduced end ofsaid sleeve, thereby holding the sleeve securely in positionand againstrotation relative to the piu 7. it is to be noted that the drum 1.6 iscapable of a partial spring tensioned revoluble movement on the reducedend 13 ot the sleeve 12, due to the action oit the spring 17. rEhe coilspring 17 has one end passing through the wall oit the sleeve at one ofits ends and engaged about the pin 7. The other end or the spring passesthrough the wall of the drum 16, and terminates in a hook 18, to whichone end ot strap 19 is connected, the other end of the strap isconnected to the picker-stick 4e by means of the clamp 20, which issecured in place by means of the bolt 21 and the nuts 22, which bolt 21also secures the shoe 23 to the lower end or' the picker-stick. rilhisshoe 23 rests and rocks upon the upper flat surface ot the picker-stickstand 3. The shoe has a lug Qf-l extending downwardly and through anopening 25 of said stand, which, on its upper' face, has a lug 26, whichenters the opening 27 of the shoe. Secured in the upper part of therua-standing arm 10 is a reduced extension Q8 (rectangular in crosssection) of the laterally extending pin Q9, by means of the nut 30 andlock nut 31. The pin 29 has a second rectangular portion 32, on which afiber disk 33 is mounted, between the shoulder 34 and the outer face ofthe rip-standing arm 10. The body ot this pin 29 is larger in diameterthan the rectangular part or portion 32, and mounted. on this largerportion is a Wood or ber disk 35. Carried by the disk thereby holdingthe parts together.

is an elongated lever 36 provided with Also mounted upon set screw 39 onthe pin 29 is a, collar 40,A

between which and said disk 38, a coil spring .4l is interposed, therebyholding the disks 33, 35 and 38 frictionally in contact,`

in order to otter frictional resistance for the disk 35. The tension ofthe spring 4l may be increased or decreased by adjusting Vthe collar 40.A screw 42 is mounted in the elongated slot 37 of the lever 36, andthere is a collar 43 on the screw adjacent the outer face of said lever36. A suitable plate 44 is also on the screw 42 and has its ends 45abent laterally to overlie the oppo site edges of said lever 36, therebeing a nut 45 threaded on the Ascrew to engage against said plate, inorder to draw the head 4G of said screw tight against the end of theextension bushing 47 of said collar 43 It is to be observed that byloosening the nut 45, the screw 42 may be Vraised and lowered in theslot 37, so as to support the collar 43 in dierent adjusted positions. Asuitable plate 48 is mounted rockably on the extension bushing 47, andone end of this plate terminates in a bearing sleeve 49, through whichthe rod 50 extends. A clamping strap 5l engages about one edge and twoside faces of tliepicker-stick 4, and is secured thereto by means of aset screw 52. The ends of the strap receive a transverse bolt 53, on oneend of which a pair of nuts 54 and a washer 55 are secured, to draw theends of the strap 51 together and in engagement with the sleeve orlbushing 56, which is mounted upon the bolt 53. Oneend of the rod 50 isprovided with an eye 57 which receives and engages the sleeve or bushing56.V Mounted upon the rod and designed to beheld in adjusted positionsby the set screws 58 aie set collars 59 and 60, there being a spring 61interposed between the set collar 60 and the bearing sleeve 49.

From the foregoing, in connection with the drawings, it is to be notedkthat when the loomA picks 0r throws the shuttle (not .bearing 49, `until.the set collar 59V will conf tact with one end of the sleeve bearing,after which the lever 36 is oscillated, and ,owing to the frictionalContact between the disks 33, 35l and 38, frietional resistance isotiere-l,

'thereby gradually liinitingthe picker-stick,

rather checking thev saine on its rearward f stroke. On the forwardstroke of the pickerp stick in the direction of the arrow Z), the collar60 pushes against the spring 6l,V which in turn pushes againsttlie.bearing, sleeve, Y thereby holding itin Contact Vwiththesleeve ,j49,and owing to the friction-a1 resistance between the disksY 33, 35 and38, the picker-V stick is checked inV its rearward movement, at thelimit of its stroke.

device may be adjusted accordingto the` stroke of the picker-stick.

The invention having been set forth, what :is claimed as new and usefulis: i f

In a device as set forth, a stand having an upstanding arm, frictionalresistant means carried by the upper end ofsaid avriny and provided witha slotted lever, a sleeve bearing, means for pivotally and adjustablyconnecting the bearing sleeve to saidslotted lever, a rod mounted in thebearing sleeve and having one end pivotally ,andV adjustably connectedto the picker-stick, a pair of set collars on the rod, with oneof whichsaid bearing sleeve is designed to contact, and a spring interposedbetween` the other set collar and the bearing sleeve, whereby thechecking of the picker-stick in its forward and rear movements iseffected.

In testimony whereof I have signedniy Witnesses LoTTin COLEMAN, ELisnMCCARLEY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Ita'cents,v

Washington, D. C.

Y Owing to the spring 61, there isa yieldable action between j so t .95f name to this specification in the presence of

